Educational Codeforces Round 9

Solutions are presented as using the least memory and the fastest execution time. It also takes the top 10 most recent solutions from each language. If you want to limit to a specific index, click the "Solved" button and go to that problem.

ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
632 Educational Codeforces Round 9 FINISHED False 7200 280681224 March 1, 2016, 3 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 8234 ) C The Smallest String Concatenation PROGRAMMING sortings strings 1800

B"You're given a list of n strings a1, xe2 x80 x89a2, xe2 x80 x89..., xe2 x80 x89an. You'd like to concatenate them together in some order such that the resulting string would be lexicographically smallest. Given the list of strings, output the lexicographically smallest concatenation. The first line contains integer n -- the number of strings (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89n xe2 x80 x89 xe2 x89 xa4 xe2 x80 x895 xc2 xb7104). Each of the next n lines contains one string ai (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89|ai| xe2 x80 x89 xe2 x89 xa4 xe2 x80 x8950) consisting of only lowercase English letters. The sum of string lengths will not exceed 5 xc2 xb7104. Print the only string a -- the lexicographically smallest string concatenation. "...

Tutorials

43493

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
16672544 favstovol C March 12, 2016, 12:28 p.m. OK Delphi TESTS 16 358 1024000 1800
16447622 garde C March 1, 2016, 4:06 p.m. OK FPC TESTS 16 124 2560000 1800
16620870 11Java11 C March 9, 2016, 4:49 p.m. OK FPC TESTS 16 139 2560000 1800
16643914 senich C March 11, 2016, 6:49 a.m. OK FPC TESTS 16 140 2560000 1800
16620439 Shadowest C March 9, 2016, 4:24 p.m. OK FPC TESTS 16 140 2560000 1800
16448185 DimaKarpov C March 1, 2016, 4:17 p.m. OK FPC TESTS 16 140 5120000 1800
16670211 BrainCancer C March 12, 2016, 9:46 a.m. OK FPC TESTS 16 171 14028800 1800
16670105 alphaver C March 12, 2016, 9:39 a.m. OK FPC TESTS 16 171 14028800 1800
16620481 glscale C March 9, 2016, 4:26 p.m. OK FPC TESTS 16 171 14028800 1800
16508548 Johnson_Nguyen C March 4, 2016, 4:37 a.m. OK FPC TESTS 16 171 14028800 1800
16447256 Yurij_Bugaychuck C March 1, 2016, 3:59 p.m. OK FPC TESTS 16 171 14028800 1800
17463492 rainboy C April 22, 2016, 10:51 p.m. OK GNU C TESTS 16 31 3072000 1800
16468521 double301 C March 2, 2016, 4:10 p.m. OK GNU C TESTS 16 31 36659200 1800
16623213 SilverScar C March 9, 2016, 7:31 p.m. OK GNU C TESTS 16 46 2560000 1800
35176598 preliminary C Feb. 12, 2018, 11:49 a.m. OK GNU C TESTS 16 78 7884800 1800
17250491 ekrem C April 9, 2016, 9:28 a.m. OK GNU C TESTS 16 109 57139200 1800
16887130 mrdakj C March 23, 2016, 1:27 p.m. OK GNU C TESTS 16 265 6963200 1800
16445432 PlayWithWind C March 1, 2016, 3:32 p.m. OK GNU C++ TESTS 16 15 5632000 1800
16545707 2013300262 C March 6, 2016, 6:19 a.m. OK GNU C++ TESTS 16 30 2969600 1800
16445309 PlayWithWind C March 1, 2016, 3:31 p.m. OK GNU C++ TESTS 16 30 5632000 1800
20224593 hay C Aug. 29, 2016, 7:28 a.m. OK GNU C++ TESTS 16 31 2764800 1800
16631655 vjudge4 C March 10, 2016, 11:53 a.m. OK GNU C++ TESTS 16 31 2764800 1800
16482338 Neutralzz C March 3, 2016, 12:24 p.m. OK GNU C++ TESTS 16 31 2764800 1800
16447218 wangnick1999 C March 1, 2016, 3:59 p.m. OK GNU C++ TESTS 16 31 2867200 1800
19539532 SpoonsAN C July 31, 2016, 2:01 p.m. OK GNU C++ TESTS 16 31 2969600 1800
17429221 lvdehuaiying C April 22, 2016, 3:17 a.m. OK GNU C++ TESTS 16 31 4812800 1800
18065801 vjudge3 C May 25, 2016, 3:25 a.m. OK GNU C++ TESTS 16 31 5017600 1800
16447624 andwho C March 1, 2016, 4:06 p.m. OK GNU C++11 TESTS 16 15 3686400 1800
16444778 Radewoosh C March 1, 2016, 3:24 p.m. OK GNU C++11 TESTS 16 15 6553600 1800
16444153 eddy1021 C March 1, 2016, 3:15 p.m. OK GNU C++11 TESTS 16 30 3379200 1800
16602910 krijgertje C March 8, 2016, 2:22 p.m. OK GNU C++11 TESTS 16 31 409600 1800
16800355 njzwj2007 C March 19, 2016, 3:37 a.m. OK GNU C++11 TESTS 16 31 1228800 1800
16526283 pr3pony C March 5, 2016, 4:59 a.m. OK GNU C++11 TESTS 16 31 1433600 1800
16454645 TimonKnigge C March 1, 2016, 9:46 p.m. OK GNU C++11 TESTS 16 31 1740800 1800
16449035 DieAnderen C March 1, 2016, 4:35 p.m. OK GNU C++11 TESTS 16 31 2457600 1800
27542588 YxuanwKeith C June 3, 2017, 11:45 a.m. OK GNU C++11 TESTS 16 31 2764800 1800
16446851 Scomip C March 1, 2016, 3:53 p.m. OK GNU C++11 TESTS 16 31 2764800 1800
27544061 fanzhirui C June 3, 2017, 12:37 p.m. OK GNU C++14 TESTS 16 30 3584000 1800
24482380 vjudge3 C Feb. 7, 2017, 6:39 a.m. OK GNU C++14 TESTS 16 30 4608000 1800
24482386 vjudge2 C Feb. 7, 2017, 6:39 a.m. OK GNU C++14 TESTS 16 30 4608000 1800
44084516 KamilSL C Oct. 10, 2018, 4:43 p.m. OK GNU C++14 TESTS 16 31 1228800 1800
44084503 KamilSL C Oct. 10, 2018, 4:42 p.m. OK GNU C++14 TESTS 16 31 1228800 1800
32318654 redligot2009 C Nov. 14, 2017, 7:17 p.m. OK GNU C++14 TESTS 16 31 1228800 1800
32285317 dendi239 C Nov. 13, 2017, 1:24 p.m. OK GNU C++14 TESTS 16 31 1228800 1800
29973946 sid_m97 C Sept. 1, 2017, 12:38 p.m. OK GNU C++14 TESTS 16 31 1331200 1800
29912704 Kanna_19 C Aug. 30, 2017, 9:06 a.m. OK GNU C++14 TESTS 16 31 1433600 1800
50091965 gurjeet8197 C Feb. 18, 2019, 10:53 a.m. OK GNU C++14 TESTS 16 31 1536000 1800
64867955 sachin45 C Nov. 14, 2019, 7:04 a.m. OK GNU C++17 TESTS 16 31 1228800 1800
68043853 cho89163 C Jan. 1, 2020, 3:32 p.m. OK GNU C++17 TESTS 16 31 1433600 1800
59103567 abhishek_20123 C Aug. 19, 2019, 5:04 p.m. OK GNU C++17 TESTS 16 31 1433600 1800
54887043 cxsy C May 31, 2019, 5:58 p.m. OK GNU C++17 TESTS 16 31 1433600 1800
48716066 ShJ C Jan. 22, 2019, 11:19 a.m. OK GNU C++17 TESTS 16 31 1638400 1800
46932233 personnon C Dec. 12, 2018, 12:12 p.m. OK GNU C++17 TESTS 16 31 1638400 1800
64516707 vjudge2 C Nov. 8, 2019, 10:59 a.m. OK GNU C++17 TESTS 16 31 2355200 1800
39800376 dmkozyrev C June 30, 2018, 2:16 p.m. OK GNU C++17 TESTS 16 31 2355200 1800
69868849 DevJewel C Jan. 30, 2020, 10:05 p.m. OK GNU C++17 TESTS 16 46 1228800 1800
68905215 dhruvik1999 C Jan. 16, 2020, 6:42 a.m. OK GNU C++17 TESTS 16 46 1228800 1800
63107777 synapse C Oct. 22, 2019, 5:53 a.m. OK Go TESTS 16 62 0 1800
16799862 binhuq C March 19, 2016, 2:51 a.m. OK Go TESTS 16 78 1433600 1800
17691645 sn23581 C May 2, 2016, 3:06 p.m. OK Go TESTS 16 514 11571200 1800
19940965 pavel.rosputko C Aug. 18, 2016, 6:40 a.m. OK Haskell TESTS 16 77 57651200 1800
64491342 davisrollman C Nov. 7, 2019, 8:07 p.m. OK Java 11 TESTS 16 233 0 1800
67473078 ankyy_0103 C Dec. 23, 2019, 1:26 p.m. OK Java 11 TESTS 16 249 0 1800
16584691 bhishma C March 7, 2016, 2:25 p.m. OK Java 7 TESTS 16 124 0 1800
16458328 nightwolf212 C March 2, 2016, 6:22 a.m. OK Java 7 TESTS 16 124 0 1800
16450763 smalex69 C March 1, 2016, 5:19 p.m. OK Java 7 TESTS 16 124 0 1800
16471167 deepraiya17 C March 2, 2016, 6:42 p.m. OK Java 7 TESTS 16 139 0 1800
16445841 nitegazer C March 1, 2016, 3:38 p.m. OK Java 7 TESTS 16 139 0 1800
16450275 deepraiya17 C March 1, 2016, 5:01 p.m. OK Java 7 TESTS 16 155 0 1800
17475682 yrjie C April 24, 2016, 2:37 a.m. OK Java 7 TESTS 16 155 39219200 1800
17148727 omarnvidia C April 3, 2016, 5:28 p.m. OK Java 7 TESTS 16 170 39321600 1800
16482170 marcose18 C March 3, 2016, 12:09 p.m. OK Java 7 TESTS 16 171 0 1800
16450948 huapito C March 1, 2016, 5:27 p.m. OK Java 7 TESTS 16 171 0 1800
16458914 poikniok C March 2, 2016, 7:14 a.m. OK Java 8 TESTS 16 124 0 1800
16458907 poikniok C March 2, 2016, 7:13 a.m. OK Java 8 TESTS 16 124 0 1800
16453555 alexrcoleman C March 1, 2016, 8:14 p.m. OK Java 8 TESTS 16 124 0 1800
42147272 IDzekh C Aug. 27, 2018, 9:39 a.m. OK Java 8 TESTS 16 139 0 1800
16449095 alexrcoleman C March 1, 2016, 4:37 p.m. OK Java 8 TESTS 16 139 0 1800
16584773 bhishma C March 7, 2016, 2:27 p.m. OK Java 8 TESTS 16 140 0 1800
16664377 CrazyBBB C March 12, 2016, 3:38 a.m. OK Java 8 TESTS 16 140 0 1800
16458925 poikniok C March 2, 2016, 7:15 a.m. OK Java 8 TESTS 16 140 0 1800
16452591 LeontiBrechko C March 1, 2016, 6:58 p.m. OK Java 8 TESTS 16 140 0 1800
35830822 mariem_kandil C March 2, 2018, 9:28 a.m. OK Java 8 TESTS 16 140 20684800 1800
28976074 bubnov C July 29, 2017, 6:14 p.m. OK Kotlin TESTS 16 342 21094400 1800
44528963 QuantumKnight C Oct. 19, 2018, 5:16 a.m. OK Mono C# TESTS 16 108 3891200 1800
16444998 Beresta C March 1, 2016, 3:27 p.m. OK MS C# TESTS 16 62 2662400 1800
16673199 DigitalArtistKz C March 12, 2016, 12:36 p.m. OK MS C# TESTS 16 77 4915200 1800
16444630 toraoh C March 1, 2016, 3:22 p.m. OK MS C# TESTS 16 170 7065600 1800
16453148 DVRazor C March 1, 2016, 7:37 p.m. OK MS C# TESTS 16 171 7372800 1800
16446805 AnatolyTolstobrov C March 1, 2016, 3:52 p.m. OK MS C# TESTS 16 171 7372800 1800
16444644 azukun C March 1, 2016, 3:22 p.m. OK MS C# TESTS 16 171 8089600 1800
16450665 og.kostya C March 1, 2016, 5:15 p.m. OK MS C# TESTS 16 187 7270400 1800
16478317 fr0st C March 3, 2016, 7:45 a.m. OK MS C# TESTS 16 187 7372800 1800
16513325 dzeranov1995 C March 4, 2016, 10:53 a.m. OK MS C# TESTS 16 233 7372800 1800
16446628 freepvps C March 1, 2016, 3:50 p.m. OK MS C# TESTS 16 280 7372800 1800
16449793 EvAn C March 1, 2016, 4:51 p.m. OK MS C++ TESTS 16 30 1433600 1800
16450542 bio_coder C March 1, 2016, 5:10 p.m. OK MS C++ TESTS 16 31 1433600 1800
16777028 goodboyboy1 C March 18, 2016, 7:25 a.m. OK MS C++ TESTS 16 31 2764800 1800
16460688 JKLY C March 2, 2016, 9:17 a.m. OK MS C++ TESTS 16 31 112435200 1800
64503430 vjudge3 C Nov. 8, 2019, 5:38 a.m. OK MS C++ TESTS 16 46 1433600 1800
64644699 vjudge3 C Nov. 10, 2019, 2:31 p.m. OK MS C++ TESTS 16 46 1433600 1800
64562879 vjudge5 C Nov. 9, 2019, 6:41 a.m. OK MS C++ TESTS 16 46 1433600 1800
64518629 vjudge3 C Nov. 8, 2019, 11:36 a.m. OK MS C++ TESTS 16 46 1433600 1800
64461563 vjudge2 C Nov. 7, 2019, 10:34 a.m. OK MS C++ TESTS 16 46 1433600 1800
54151875 vjudge1 C May 15, 2019, 1:05 a.m. OK MS C++ TESTS 16 46 1433600 1800
69979183 Kirja_ES C Feb. 1, 2020, 3:50 p.m. OK MS C++ 2017 TESTS 16 46 1228800 1800
60496226 siwei C Sept. 13, 2019, 4:30 p.m. OK MS C++ 2017 TESTS 16 46 1228800 1800
64367212 vjudge3 C Nov. 6, 2019, 1:21 p.m. OK MS C++ 2017 TESTS 16 46 1228800 1800
64479051 Jimmyokok C Nov. 7, 2019, 3:19 p.m. OK MS C++ 2017 TESTS 16 46 1331200 1800
64416498 vjudge5 C Nov. 6, 2019, 5 p.m. OK MS C++ 2017 TESTS 16 46 1433600 1800
64599041 vjudge3 C Nov. 9, 2019, 5:55 p.m. OK MS C++ 2017 TESTS 16 46 2457600 1800
64596016 mirack C Nov. 9, 2019, 4:43 p.m. OK MS C++ 2017 TESTS 16 46 2457600 1800
66861460 fatnot C Dec. 14, 2019, 12:36 p.m. OK MS C++ 2017 TESTS 16 61 1228800 1800
64361856 vjudge4 C Nov. 6, 2019, 11:56 a.m. OK MS C++ 2017 TESTS 16 62 3276800 1800
64619552 vjudge2 C Nov. 10, 2019, 6:22 a.m. OK MS C++ 2017 TESTS 16 373 265625600 1800
23458858 Ali.Pi C Dec. 30, 2016, 10:04 p.m. OK Perl TESTS 16 109 10035200 1800
16454152 rsFalse C March 1, 2016, 9:03 p.m. OK Perl TESTS 16 124 7475200 1800
16453948 rsFalse C March 1, 2016, 8:50 p.m. OK Perl TESTS 16 451 7577600 1800
16455293 riadwaw C March 1, 2016, 10:56 p.m. OK PyPy 2 TESTS 16 217 4608000 1800
16447349 kliner C March 1, 2016, 4:01 p.m. OK PyPy 2 TESTS 16 248 4403200 1800
18715899 justforlaugh C June 25, 2016, 8:21 a.m. OK PyPy 2 TESTS 16 264 3276800 1800
18715927 justforlaugh C June 25, 2016, 8:23 a.m. OK PyPy 2 TESTS 16 264 3481600 1800
18715934 justforlaugh C June 25, 2016, 8:23 a.m. OK PyPy 2 TESTS 16 280 3481600 1800
16689476 Eeyore C March 13, 2016, 9:55 a.m. OK PyPy 2 TESTS 16 280 5734400 1800
16543452 orailly C March 6, 2016, 1:47 a.m. OK PyPy 2 TESTS 16 295 4198400 1800
16762091 lowiq C March 17, 2016, 11:15 a.m. OK PyPy 2 TESTS 16 311 3379200 1800
16689942 Eeyore C March 13, 2016, 10:34 a.m. OK PyPy 2 TESTS 16 358 8908800 1800
41902360 Onesh0t C Aug. 20, 2018, 12:51 p.m. OK PyPy 2 TESTS 16 436 6963200 1800
16467180 Ferume C March 2, 2016, 2:49 p.m. OK PyPy 3 TESTS 16 576 8704000 1800
16449443 Ferume C March 1, 2016, 4:44 p.m. OK PyPy 3 TESTS 16 576 8704000 1800
18164784 2sz.zhao C May 31, 2016, 6:48 a.m. OK PyPy 3 TESTS 16 638 30822400 1800
16454225 cugel C March 1, 2016, 9:09 p.m. OK PyPy 3 TESTS 16 654 7372800 1800
16454261 restmore C March 1, 2016, 9:11 p.m. OK Python 2 TESTS 16 139 3276800 1800
16460240 venkatesh_p C March 2, 2016, 8:49 a.m. OK Python 2 TESTS 16 171 1843200 1800
16459843 rsFalse C March 2, 2016, 8:25 a.m. OK Python 2 TESTS 16 171 2048000 1800
16543461 orailly C March 6, 2016, 1:49 a.m. OK Python 2 TESTS 16 171 2969600 1800
16495080 masonsbro C March 3, 2016, 5:45 p.m. OK Python 2 TESTS 16 171 3072000 1800
17247944 hellobug_2 C April 9, 2016, 4:59 a.m. OK Python 2 TESTS 16 171 6553600 1800
16675428 andreamaf C March 12, 2016, 2:18 p.m. OK Python 2 TESTS 16 186 1945600 1800
16513676 I_Love_Ginger C March 4, 2016, 11:19 a.m. OK Python 2 TESTS 16 186 3072000 1800
17876364 vjudge1 C May 12, 2016, 1:29 p.m. OK Python 2 TESTS 16 186 7680000 1800
16458361 chauchakching C March 2, 2016, 6:25 a.m. OK Python 2 TESTS 16 187 2867200 1800
16456856 vigneshjayavel C March 2, 2016, 3:20 a.m. OK Python 3 TESTS 16 233 1945600 1800
17118860 wujuihsuan2016 C April 1, 2016, 8:06 p.m. OK Python 3 TESTS 16 233 6963200 1800
18180680 xidebixia C June 1, 2016, 10:48 a.m. OK Python 3 TESTS 16 233 7065600 1800
18150258 ChemJeff C May 29, 2016, 6:36 p.m. OK Python 3 TESTS 16 233 7065600 1800
16543481 orailly C March 6, 2016, 1:54 a.m. OK Python 3 TESTS 16 234 2048000 1800
18158504 sky.Katherine C May 30, 2016, 3:03 p.m. OK Python 3 TESTS 16 234 6656000 1800
16456730 vigneshjayavel C March 2, 2016, 3:02 a.m. OK Python 3 TESTS 16 249 2048000 1800
16465653 nameisnotdefined C March 2, 2016, 1:33 p.m. OK Python 3 TESTS 16 249 2560000 1800
18128951 Zachxuan C May 28, 2016, 8:58 a.m. OK Python 3 TESTS 16 249 6553600 1800
18128893 Zachxuan C May 28, 2016, 8:56 a.m. OK Python 3 TESTS 16 249 6553600 1800
35886264 ______M______ C March 3, 2018, 1:43 p.m. OK Ruby TESTS 16 187 10342400 1800
16456302 cielavenir C March 2, 2016, 1:50 a.m. OK Ruby TESTS 16 202 3891200 1800
16461942 rise3812 C March 2, 2016, 10:31 a.m. OK Ruby TESTS 16 202 3993600 1800
45028414 kobae964 C Oct. 29, 2018, 12:52 a.m. OK Rust TESTS 16 249 106803200 1800
60915336 sansen C Sept. 20, 2019, 7:55 a.m. OK Rust TESTS 16 295 1945600 1800
19181582 whimsycwd C July 17, 2016, 12:52 a.m. OK Scala TESTS 16 374 0 1800

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